Office Chair Gas Lift Shaft

The office chair gas lift shaft usually refers to the gas spring (gas rod), which is a core component for adjusting the height or rotation of the seat. It is important to pay attention to its types, safety certifications, and price differences.

I. Types and Functions of Gas Springs

Gas springs can be classified into four categories based on their functions:

1. Rotation-Only Gas Rods: Such as products from Foshan Shengdeli Home Furnishings Co., Ltd., priced at approximately ¥28.0. These are suitable for scenarios requiring only rotational adjustment and are commonly found in basic office chairs.
2. Adjustable Height Gas Springs: Such as the universal gas springs from Changzhou Nantai Gas Spring Co., Ltd., priced at approximately ¥13.0. These adjust the seat height through changes in gas pressure and are the mainstream choice in the market.
3. Explosion-Proof Adjustable Height Gas Rods: Such as the Class 3 and Class 4 gas rods from Foshan Nanhai Hongxin Hardware Furniture Factory, priced at approximately ¥14.6-¥42.58. These use high-strength materials and explosion-proof designs for higher safety and are suitable for scenarios requiring high stability.
4. Sinking Hydraulic Rods: Such as the gaming chair gas springs from Wenzhou Kewu Trading Co., Ltd., priced at approximately ¥92.9-¥121.86. These achieve slow sinking or lifting through a hydraulic system and are commonly found in high-end gaming chairs or ergonomic chairs.

II. Safety Certifications and Selection Recommendations

The safety of gas springs should be guaranteed through authoritative certifications:

• TÜV Rheinland Certification: Testing items include cycle life, impact load, etc., ensuring no failure risk during long-term use. For example, the gas spring of the AutoFull M6Pro gaming chair has passed this certification and includes an additional metal isolation layer in the chassis to further reduce explosion risk.
• SGS Certification: It is necessary to confirm that the testing type is dynamic load-bearing of the entire rod, not just material testing. Some low-priced products may only pass material testing, with insufficient actual load-bearing capacity.
• BIFMA X5.1 Standard: Requires the gas spring to complete more than 12,000 lifting cycles without failure. The gas spring of the ErgoHuman Gold B Eagle chair reaches Class 4 level, and the entire chair has passed all BIFMA tests, making it suitable for long-term use.

Selection Recommendations: Prioritize products that have passed TÜV, SGS, or BIFMA certifications, and avoid purchasing gas springs without certifications or with abnormally low prices. For gaming chairs or high-end office chairs, it is recommended to choose sinking hydraulic rods or explosion-proof gas rods, while general office scenarios can opt for universal adjustable height gas springs.

III. Price and Supplier References

The prices of gas springs vary significantly due to differences in function, certification, and material:

• Basic rotation-only gas rods are priced at approximately ¥11.0-¥22.0;
• Explosion-proof adjustable height gas rods are priced at approximately ¥14.6-¥42.58;
• Gaming chair-specific sinking hydraulic rods are priced at approximately ¥92.9-¥121.86.

Major suppliers include Foshan Shengdeli Home Furnishings Co., Ltd., Changzhou Nantai Gas Spring Co., Ltd., and Wenzhou Kewu Trading Co., Ltd. When purchasing, you can request suppliers to provide certification documents and test reports.